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Finding the Fourth Proportional to 540,561.80, 810,570.70 and 166,536.20

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Solution

The fourth proportional to 540,561.80, 810,570.70 and 166,536.20 is: 249,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,561.80 : 810,570.70 = 166,536.20 : x
  2. Step 2: Convert to fraction form
    540,561.80/810,570.70 = 166,536.20/x
  3. Step 3: Cross multiply
    540,561.80x = 810,570.70 × 166,536.20
  4. Step 4: Simplify right side
    540,561.80x = 134,989,364,209.34
  5. Step 5: Solve for x
    x = 134,989,364,209.34/540,561.80
  6. Step 6: Final answer
    x = 249,720.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.